Improved temporal resolution in cardiac imaging using through-time spiral GRAPPA.
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ABSTRACT:
SUBMITTER: Seiberlich N
PROVIDER: S-EPMC3247784 | biostudies-literature | 2011 Dec
REPOSITORIES: biostudies-literature
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Improved temporal resolution in cardiac imaging using through-time spiral GRAPPA.
Seiberlich Nicole N Lee Gregory G Ehses Philipp P Duerk Jeffrey L JL Gilkeson Robert R Griswold Mark M
Magnetic resonance in medicine 20110426 6
Previous work has shown that the use of radial GRAPPA for the reconstruction of undersampled real-time free-breathing cardiac data allows for frame rates of up to 30 images/s. It is well known that the spiral trajectory offers a higher scan efficiency compared to radial trajectories. For this reason, we have developed a novel through-time spiral GRAPPA method and demonstrate its application to real-time cardiac imaging. By moving from the radial trajectory to the spiral trajectory, the temporal ...[more]
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